

API pH Down, Freshwater Aquarium Water pH Reducing Solution, 16 oz
Key item features
- Contains one 1 API pH DOWN Freshwater Aquarium Water pH Reducing Solution 4-Ounce Bottle
- Lowers freshwater aquarium water pH with a phosphate-free formula
- Does not promote algae growth with pH adjustments and is safe for plants and fish
- Slowly neutralizes alkaline substances that cause high water pH
- Test water weekly and use to correct pH level in freshwater aquariums
- This product contains 9.6% of sulfuric acid
Specs
- Aquarium water treatment typeAquarium Water Treatment
- Size16 oz
- Animal typeFish, Aquatic
- FeaturesEffective
- Rec. useAt-Home
- Retail packagingSingle Piece
Free 90-day returns
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Compare with similar items
| Product | Viewing this itemAPI pH Down, Freshwater Aquarium Water pH Reducing Solution, 16 oz ![]() $15.98 current price $15.9894.7 out of 5 Stars. 9 reviews | API pH Down Aquarium pH Treatment 4 Ounces ![]() $8.61 current price $8.61104.8 out of 5 Stars. 10 reviews | Tetra AquaSafe Plus Aquarium Water Conditioner and De-Chlorinator,16.9 oz ![]() $17.27 current price $17.271724.6 out of 5 Stars. 172 reviews | API Stress Zyme, Freshwater And Saltwater Aquarium Cleaning Solution, 8 oz ![]() $13.99 current price $13.99134.8 out of 5 Stars. 13 reviews | API pH Up Raises Aquarium pH for Freshwater Aquariums [Aquarium pH Treatments, Aquarium Supplies] 16 oz ![]() $21.69 current price $21.6915 out of 5 Stars. 1 reviews | API Tap Water Conditioner, Aquarium Water Conditioner, 8 oz ![]() $13.79 current price $13.79154.9 out of 5 Stars. 15 reviews |
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| Aquarium water treatment type | Aquarium Water TreatmentAPI pH Down, Freshwater Aquarium Water pH Reducing Solution, 16 oz | Aquarium Water TreatmentAPI pH Down Aquarium pH Treatment 4 Ounces | Aquarium Water ConditionerTetra AquaSafe Plus Aquarium Water Conditioner and De-Chlorinator,16.9 oz | Aquarium Water ConditionerAPI Stress Zyme, Freshwater And Saltwater Aquarium Cleaning Solution, 8 oz | Aquarium Water TreatmentAPI pH Up Raises Aquarium pH for Freshwater Aquariums [Aquarium pH Treatments, Aquarium Supplies] 16 oz | Aquarium Water ConditionerAPI Tap Water Conditioner, Aquarium Water Conditioner, 8 oz |
|---|---|---|---|---|---|---|
| Size | 16 ozAPI pH Down, Freshwater Aquarium Water pH Reducing Solution, 16 oz | -API pH Down Aquarium pH Treatment 4 Ounces | 16.9 ozTetra AquaSafe Plus Aquarium Water Conditioner and De-Chlorinator,16.9 oz | -API Stress Zyme, Freshwater And Saltwater Aquarium Cleaning Solution, 8 oz | 16 ozAPI pH Up Raises Aquarium pH for Freshwater Aquariums [Aquarium pH Treatments, Aquarium Supplies] 16 oz | 8 ozAPI Tap Water Conditioner, Aquarium Water Conditioner, 8 oz |
| Animal type | FishAPI pH Down, Freshwater Aquarium Water pH Reducing Solution, 16 oz | FishAPI pH Down Aquarium pH Treatment 4 Ounces | FishTetra AquaSafe Plus Aquarium Water Conditioner and De-Chlorinator,16.9 oz | FishAPI Stress Zyme, Freshwater And Saltwater Aquarium Cleaning Solution, 8 oz | AquariumAPI pH Up Raises Aquarium pH for Freshwater Aquariums [Aquarium pH Treatments, Aquarium Supplies] 16 oz | FishAPI Tap Water Conditioner, Aquarium Water Conditioner, 8 oz |
| Features | EffectiveAPI pH Down, Freshwater Aquarium Water pH Reducing Solution, 16 oz | -API pH Down Aquarium pH Treatment 4 Ounces | ConditionsTetra AquaSafe Plus Aquarium Water Conditioner and De-Chlorinator,16.9 oz | -API Stress Zyme, Freshwater And Saltwater Aquarium Cleaning Solution, 8 oz | -API pH Up Raises Aquarium pH for Freshwater Aquariums [Aquarium pH Treatments, Aquarium Supplies] 16 oz | Tap Water SafeAPI Tap Water Conditioner, Aquarium Water Conditioner, 8 oz |
About this item
Product details
Introducing API pH Down, the ultimate solution for maintaining optimal pH levels in your freshwater aquarium. Experience the power of fast-acting pH lowering that ensures your aquarium remains at the desired acidity level with ease.
API pH Down is a game-changer, providing a colorless and straightforward approach to adjusting pH levels without clouding or coloring your aquarium water. Designed for freshwater aquariums, this cutting-edge formula is the go-to choice for community aquariums, soft water, and live-bearing fish.
Maintain a harmonious aquatic environment by following the recommended pH levels for your freshwater tropical fish:
- Egg-laying fish: 6.6 to 6.8 (slightly acidic)
- Community aquarium: 7.0 (neutral)
- Live-bearing fish: 7.2 to 7.6 (slightly alkaline)
Simple to use, API pH Down ensures precision with each application. Utilise the API Freshwater pH Test Kit to determine your aquarium water's pH level accurately. For effective pH reduction, add two drops of pH Down per gallon of water. Monitor the pH closely and avoid changing it by more than 0.2 within a 24-hour period to protect your fish's well-being.
As safety is paramount, handle with care and follow the provided directions diligently. In the event of contact with the eyes or skin, immediate action is essential for safety. Remember, prevention is better than cure, and seeking medical advice is crucial in case of any accidents or adverse reactions.
With API pH Down, rest assured that your freshwater aquarium will thrive in the optimal pH conditions for your beloved aquatic community. Transform your aquarium maintenance routine with this reliable, efficient, and safe pH lowering solution. Welcome a new era of aquarium care with API pH Down.
- Contains one 1 API pH DOWN Freshwater Aquarium Water pH Reducing Solution 4-Ounce Bottle
- Lowers freshwater aquarium water pH with a phosphate-free formula
- Does not promote algae growth with pH adjustments and is safe for plants and fish
- Slowly neutralizes alkaline substances that cause high water pH
- Test water weekly and use to correct pH level in freshwater aquariums
- This product contains 9.6% of sulfuric acid
Specifications
Aquarium water treatment type
Brand
Instructions
Size
Directions
Instructions
Warranty
Warranty information
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Customer ratings & reviews
Filtered and sorted results would be available on the new 'Customer ratings & reviews' page.
Showing 1-3 of 4 reviews
Verified Purchase
Great aquarium ph down and useful with plants.
I have always used API products with my fish so i know how gentle they are to use, and i found this to be also useful in preparing water for my vegetables and fruits i grow inside.
Verified Purchase
When water is highly alkaline, having a large quantity of ph down makes future purchases occur less. It's a necessity when aquarium water changes are required often.
Verified Purchase
Fast delivery
Didn't know they made this for aquariums but I got a tester, the Ph up




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